<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<script>
    function setCookie(cname,cvalue,exdays){
        var d = new Date();
//        d.setTime(d.getTime()+(exdays*24*60*60*1000));
        d.setTime(d.getTime()+(exdays*10000));
        var expires = "expires="+d.toGMTString();
        document.cookie = cname+"="+cvalue+"; "+expires;
    }
    function getCookie(cname){
        var name = cname + "=";
        var ca = document.cookie.split(';');
        for(var i=0; i<ca.length; i++) {
            var c = ca[i].trim();
            if (c.indexOf(name)==0) return c.substring(name.length,c.length);
        }
        return "";
    }

    var cdate = new Date()
    setCookie("daniel",5555,1)
    setInterval(function () {
        var coo = getCookie("daniel")
        console.log(coo)
    },3000)



</script>
</body>
</html>